THE FIRST RECORD OF OVER-SUMMERING SPOON-BILLED SANDPIPER EURYNORHYNCHUS PYGMEUS IN THAILAND

. 2010a, b), this over-summering r ecord is highly significant. The same individual was photographed by SS almost one month later, on 16 August 2010, when it roosted on salt-pans. Its primaries were in active moult, with score being “555554[1 or 2] 000” and the tertials had been dropped or were growing. A few black-centred, breeding plumage feathers were visible in the mantle and scapulars, but the bird was otherwise in grey, non-breeding plumage (Figures 1 and 2). The outermost three (unmoulted) primaries were extremely bleached, brownish and pointed, supporting the supposition that this was a first-summer bird. Although first-year shorebirds frequently renew a few outer primaries in a partial post-juvenile moult, some do not, and there are many species in which only a proportion of the population undergoes such a moult (Higgins & Davies 1996, Marchant & Higgins 1993, D. Rogers,